<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>正方体</title>
		<link rel="stylesheet" type="text/css" href="./css/cube.css"/>
	</head>
	<body>
		<div class="cube">
			<div class="plane plane-front">3</div>
			<div class="plane plane-top">1</div>
			<div class="plane plane-bottom">5</div>
			<div class="plane plane-left">4</div>
			<div class="plane plane-right">2</div>
			<div class="plane plane-back">6</div>
		</div>
	</body>
</html>
